"...craziness..."
"...saw the fractured light in his eyes..."
"...that underneath the 'stayin' sane' kind of craziness there was another, real craziness."
"...saw his eyes gleaming between the lashes..."
"...and his eyes gleamed..." (same paragraph as the first gleaming-eyed bit)
"...grinning maniacally..."
Book Report Voice: I think this character is going crazy.
(cue telegraph operator, dot dash dot dash dot dot dash)